Stabilising a clay using tyre buffings and lime

Çabalar, Ali Fırat; Karabash, Zuheir; Mustafa, Waleed Sulaiman

doi:10.1080/14680629.2014.939697

Cited by 102 publications

(33 citation statements)

References 35 publications

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“…Reduction in the compaction characteristics as a result of GR inclusion can be attributed to the lower specific gravity and hydrophobic nature of the rubber particles compared with the soil grains (Cabalar et al, 2014;Özkul and Baykal, 2007;Signes et al, 2016). Similarly to the consistency limits, the optimum water content is primarily a function of the soil's clay/fines content, with higher clay contents exhibiting a higher optimum water content.…”

Section: 2mentioning

confidence: 99%

“…swell-shrink capacity), which can facilitate the production and placement of sustainable earth fills such as road and railway embankments (e.g. Cabalar et al, 2014;Cetin et al, 2006;Özkul and Baykal, 2007;Perez et al, 2017;Signes et al, 2016;Soltani et al, 2018bSoltani et al, , 2018cSrivastava et al, 2014;Trouzine et al, 2012;Wang et al, 2018;Tiwari, 2017a, 2017b). When placed in a flowable condition, the rubber-soil blend outperforms conventional soil backfills by enabling the placement of particles into any irregular or inaccessible space without significant compaction efforts (ACI R229 (ACI, 2013)).…”

Section: Introductionmentioning

confidence: 99%

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Consistency limits and compaction characteristics of clay soils containing rubber waste

Soltani

Deng

Taheri

et al. 2019

Proceedings of the Institution of Civil Engineers - Geotechnica

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The aim of the study reported in this paper was to develop practical correlative models capable of predicting the compaction characteristics of clay soils blended with rubber from waste vehicle tyres. Four different clay soils, ranging from intermediate to high plasticity, were adopted for the test programme and each was blended with four different percentages of ground rubber waste. The test programme consisted of cone penetration (consistency limits) and standard Proctor compaction tests. As a result of ground rubber inclusion, the consistency limits and compaction characteristics all exhibited a linear decreasing trend with increase in rubber content. The rate of decrease, however, was greater for the high-plasticity clays. Simple correlative models, linking the compaction characteristics to the consistency limits, were suggested and validated by statistical techniques. The proposed models provide a practical procedure towards predicting the compaction characteristics of ground rubber-clay blends without the hurdles of conducting laboratory compaction tests, and thus can be implemented in practice for preliminary assessments.

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Section: 2mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Consistency limits and compaction characteristics of clay soils containing rubber waste

Soltani

Deng

Taheri

et al. 2019

Proceedings of the Institution of Civil Engineers - Geotechnica

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Section: Compaction Studies and Sample Preparationsmentioning

confidence: 99%

“…The virgin soil resulted in γ dmax = 15.07 kN/m 3 (w opt = 26.00%), whereas the inclusion of 10% RA and RB resulted in γ dmax = 14.35 kN/m 3 and 14.37 kN/m 3 (w opt = 23.87% and 23.46%), respectively. Such trends can be attributed to the lower specific gravity, specific surface area, and water adsorption capacity (or hydrophobic nature) of the rubber particles compared with the soil grains [32,34]. Samples for the cyclic wetting-drying tests were prepared at their respective dry of optimum condition, defined as 5% less than the optimum water content and its corresponding dry unit weight-point "O" for C, point "A" for CRA, and point "B" for CRB, as outlined in Figure 2.…”

Section: Compaction Studies and Sample Preparationsmentioning

confidence: 99%

Swell–Shrink Behavior of Rubberized Expansive Clays during Alternate Wetting and Drying

et al. 2019

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The present study examines rubber’s capacity of improving the swell–shrink potential of expansive clays. Two rubber types of fine and coarse categories with different geometrical features were considered. The test program consisted of standard Proctor compaction and cyclic wetting–drying tests. Scanning electron microscopy (SEM) analysis was also performed to identify the soil–rubber amending mechanisms, and to observe the evolution of fabric in response to alternate wetting and drying. Cyclic wetting–drying led to the reconstruction of the soil/soil–rubber microstructure by way of inducing aggregation and cementation of the soil grains. The greater the number of applied cycles, the lower the swell–shrink features, following a monotonically decreasing trend, with the rubberized blends holding a notable advantage over the virgin soil. The tendency for reduction, however, was in favor of a larger rubber size, and more importantly the rubber’s elongated form factor; thus, predicating a rubber size/shape-dependent amending mechanism. The soil–rubber amending mechanisms were discussed in three aspects—increase in non-expansive content, frictional resistance generated as a result of soil–rubber contact, and mechanical interlocking of rubber particles and soil grains. The swell–shrink patterns/paths indicated an expansive accumulated deformation for the virgin soil, whereas the rubberized blends manifested a relatively neutral deformational state, thereby corroborating the rubber’s capacity to counteract the heave and/or settlement incurred by alternate wetting and drying.

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“…The use of waste materials for soil reinforcement has been gaining popularity primarily because of its versatility, easy and cost-effective construction. For example, different forms of waste tires have been employed in some applications in civil engineering including insulation beneath roads, slope stability, and lightweight backfill retaining walls (Mitchell and Katti, 1981;Fatani, Bauer and Al-Joulani, 1991;Ahmed and Lovell, 1992;Edil and Bosscher, 1994;Masad et al 1996;Shahu, Yudhbir, and Kameswara,1999;Kim and Santamarina, 2008;Tanchaisawat, Bergado, Voottipruex and Shehzad, 2010;Sarkar, Abbas, and Shahu, 2012;Edincliler, Cabalar, Cevik and Cagatay, 2012;Cabalar, Karabash and Mustafa, 2014;Cabalar and Karabash, 2015;Gomes Correira, Winter and Puppala, 2016;Patel and Shahu, 2016;Seddon, Winter and Nettleton, 2018;Cabalar, Zardikawi and Abdulnafaa, 2019). In addition, investigations on plastic waste use as soil reinforcement material have proved its worth in geotechnical applications including road bases, embankments, slope stability, retaining walls by increases in shear strength, and reductions of post peak losses in soils (Maher and Ho 1994;Santoni et al 2001;Zornberg 2002;Consoli, Prietto and Ulbrich, 2007;Muntohar, 2012).…”

Section: Introductionmentioning

confidence: 99%

Aluminum Waste in Road Pavement Subgrade

Çabalar

Govar²,

Abdulnafaa

et al. 2020

Ing. Inv.

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This paper aims to investigate the use of spiral aluminum computer numerical control milling waste (CNC-W) in the construction of road pavement subgrade. The soil (CL) was mixed with CNC-W spirals with ratios of between 0% and 20%, and 5 percent increments by dry weight with different water contents. California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS), and consolidation tests were conducted. The experimental results indicated that the inclusion of CNC-W spirals increased the CBR value of clay up to the 15% mixture ratio, then decreased it. Similarly, the UCS value of clay was increased to the same ratio, whilst the UCS was not able to be determined due to the failing of all specimens with a mixture ratio higher than 15%. The permeability and swelling values, as well as the consolidation characteristics of the mixtures, were defined. The swelling percentages decreased from 1,15 cm/sec to 0,81 cm/sec with an increment in the CNC-W spiral content. A reduction was observed in the coefficient of permeability (k) values up to 15% mixture ratio, whilst it remained constant with change in CNC-W spiral content with a 20% mixture ratio. Coefficient of consolidation demonstrated a similar pattern of behavior to the permeability changes

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Stabilising a clay using tyre buffings and lime

Cited by 102 publications

References 35 publications

Consistency limits and compaction characteristics of clay soils containing rubber waste

Consistency limits and compaction characteristics of clay soils containing rubber waste

Swell–Shrink Behavior of Rubberized Expansive Clays during Alternate Wetting and Drying

Aluminum Waste in Road Pavement Subgrade

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